Milk stool



Aug. 12, 1947.

M. BLACK MILK STOOL I Filed July 8, l1944 Patented Aug. 12, 1947 MILKSTOOL Mike Black, Cincinnati, Ohio, assigner to H. H. Nichol-ding,Cincinnati, Ohio Application ll'tlly 8, 1944, Serial No. 544,063

2 Claims.

This invention relates specifically to milk stools, particularly adaptedfor use in dairies by persons engaged in milking cows therein; althoughit will he made evident that the stool constitutes a facility applicableto use as a seat in various places, and that the scope of the inventionis not limited by the use to which it is applied.

Objects of the invention are to provide a stool' comprising a polypodoussupporting frame having an annular bearing portion` at its upper end, incombination with a seat having a retaining bracket attached to itsunderside and rotatively mounted on said bearing, and an attachingbear'- ing device cooperating with said frame and said seat forrotatively holding the seat in a relationship in which said bracketoperates on said bearing, leaving said seat free for rotation about avertical axis while said frame remains stationary; to provide a portableand light-weight stool having a stationary supporting frame and rotaryseat composed principally ci light-gage or thin-gage sheet metal,thereby contributing substantially and effectively to the lightness oiweight of the stool; and to provide a stool composed of a polypodousframe having an annular bearing rigidly connecting the upper ends of thelegs thereof and provided with a central hole, in combination with alight-weight and thin-gage sheet metal seat having a bracket attached toits underside and rotatively supported by said bearing, and a centralpivot device engaged in said hole and preventing both lateral andvertical displacement of the seat relative to the frame while leavingthe seat freely rotative about the axis of said pivot device.

Another object of the invention is to provide a stool for general use asa seat and consisting of a light-weight metallic polypodous supportingframe made of thin-gage sheet metal parts, in combination with a seatcomposed principally of thin-gage and light-weight sheet metal, andmeans for pivotally holding said seat on said frame while leaving saidseat free for rotation about a vertical axis and preventing displacementthereof in any direction.

Various other objects and advantages will be evident from the followingdescription, reference being made to the annexed drawing, in which- Fig.1 is a side elevation of my improved polypodous stool.

Fig. 2 is an enlarged vertical sectional View showing the devices bywhich the seat is pivotally and rotatively retained upon and inconnection with the supporting frame and held from displacement in anydirection.

Fig. 3 is a sectional view on the line 3-3 of Fig. 2, looking in thedirection of the arrows and showing a bottom plan view of the device bywhich the seat is rotatively held in connection with the supportingframe and prevented from displacement.

Fig. 4 is a top plan .View showing attached crossed portions of the legsof the stool, looking from the plane 4 4 of Fig. 2.

In the embodiment of my invention shown, the polypodous supporting frameor pedestal comprises two pairs of sheet metal supporting legs whichconverge upwardly from attached crossed portions near their lower ends.The upper ends of the converging legs are rigidly secured to 'an annularbearing device for supporting the seat. It is evide-nt that the numberof legs may be varied as desired, and that the invention is not limitedto an embodiment in which the legs are arranged in pairs.

A relatively narrow strip of sheet metal of relatively thin gage andlight weight is shaped to form a standard of approximately Aconfiguration and provide two upwardly converging legs or limbs l and 2integrally connected at their lower ends by an inwardly bowed cross-barhaving upwardly converging portions 3 and 4 and a substantiallyhorizontal portion 5. The bearing portions 5 by which the legs l and 2are integrally connected with the portions 3 and 4, respectively, arecurved and rounded as shown, in order to present smoothly curved androunded outer bearing surfaces that will not damage, deface or mar thefloors, carpets or rugs upon which the stool may sometimes be used. Thehorizontal connection 5 is formed with a vertically displaced portion lfor receiving and for attachment to a complementary part of thecooperating pair of legs.

The said cooperating pair of legs comprises a relatively narrow strip ofsheet metal of relatively thin gage and light weight shaped to form andprovide two upwardly converging legs 8 and 9 integrally connected attheir lower ends by upwardly converging portions I0 and II and asubstantially horizontal portion I2. The bearing portions i3 by whichthe legs 8 and 9 are integrally connected with the portions I0 and I-I,respectively, are curved and rounded like the bearing portions 6 inorder to pre-sent smoothly curved and rounded outer bearing surfacesthat will not damage, deface or mar the iioors, carpets or rugs uponwhich the stool may sometimes be used. The horizontal portion I2 crossesthe horizontal portion 5 and seats in and against the verticallydisplaced portion 'l thereof. The crossed parts 1 and I2 are rigidlyattached together as by a'rivet I4. Y

Each ofthe legs I, 2, 8 and 9 has an attaching portion I5 on its upperend. The attaching portions I5 of all of the legs are engaged against anannular flange I6 of a circular sheet metal cap and rigidly attachedthereto by welds I 'l or otherwise, as desired. The flange I6 forms anintegral Vpart of an annular bearing I8. The annular bearing I8 isimmediately above the flange I6 and is integrally connected by a wallhaving a domed cr upwardly convexed central bearing portion I9 providedwith a hole that is coaxial with the annular flange I 5. bearing I8' andthe bearing portion I9 are preferably in the same horizontal plane.

The detachable and rotary seat of my improved stool comprises anapproximately circular section 4 Y ing Yportion I9 of the frame intoclamping engagement with the underside of the central portion 22 of theseat device, and a portion 2'9 of greater diameter than the hole in thedomed or convexed portion 20 ofthe frame through which the portion 28extends, constitutes a part of the means for pivotally holding the seaton the frame while leaving said seat free for rotation The uppersurfaces of the of thin-gage and light-weight sheet metal shaped to forma horizontal seating portion 20, and an integral downwardly extendedcircumferential ange 2l. The diameter of said seating portion isconsiderably greater than the diameter of the annular ange I5. Thediameter of said seating portion 2D also is substantially less than thedistance between the lower ends of any pair of legs of the supportingframe. This prevents the stool from tilting,A regardless of thedistribution of Iweight on the seat. The downwardly extended flange ZIsubstantially strengthens the marginal portion of the seating portion2Q, prevents Y bending and deformation thereof, and makes it possible touse light-weight sheet metal of smaller or thinner gage in forming theseating portion than would otherwise be possible.

Y lThe central part of the seating portion 29 of the thin-gage andlight-weight metallic seat is strengthened and is prevented from bendingor becoming deformed by a bearing device or hub extending centrally fromthe underside of the about a vertical axis, and for preventingdisplacement of the seat in any direction. The said'mern-ber 23-29 has ahole which is brought in vertical axial .continuation of the hole-2`Iwhen said seat 20 is shifted. An attaching screw 30 extends verticallythrough the hole in the member V2li-29, through the hole in the centralportion 22, and is detachably screwed intoV the threaded hole 21 in themetallic .body 26 in a manner to clamp the member 28-29 firmly againstsaid central portion 22. In this adjustment, the portion 29 does notclampingly engage against the domed or upwardly convexed centrallbearing portion I9, but is held out of Y 28 abutting against the centralportion 22.

seat, cooperating with therbearing I8 and with the dofmed or upwardlyconvexed central portion I9 of the supporting frame. The said bearingdevice or hub consists of a central portion 22 Vpreferably seating uponthe domed or upwardly convexed central bearing portion I 9 of the frame,

and an annular portion 23 in integral connection with the margin of thecentral portion 22 and having .a marginal ange 24 seating against andattached to the underside of the part 2G of the seat by welding 25 orotherwise. The annular 'portion 23 is in vertical continuation oftheflange I so that the margin of the central portion 22 seats upon thebearing I8. This positively prevents the seat from becoming tilted orinclined 'upon the supporting frame, and yet Y rotative about thevertical axis of said pivot device.' In the construction shown, ametallic Vbody 25 is welded or otherwise rigidly'attache'd to theupperrside of the central portion 22. The said .metallic body 26 isformed with a central screwthreaded hole 21 coaxial with the seat 2G,

Y and the central portion 22 is provided with a'hole Vin *continuationof the hole'21 and in axial alinement with the hole through the domed orup- Y wardly convexed central-bearing portion I9 of A memberfcomprisingan abuttingV the frame. end portion 28 extendingthrough the hole in Ykthe domedf'or upwardly convexed central bear- Y iiguration providinga'pair of aligned'convergingf limbs, and limb connecting cross-bartoward theVA rhese elements pivotally hold the seat on the supportingframe, leave said seat free for rotation about the vertical axis ofthepivot device, andV prevent tilting or displacement of the seat in anydirection. l Y o It is now evident that my invention attains all of itsintended objects and purposes ina highly efficient, satisfactory Yandeconomical manner. The stool may be composed almost entirely oflight-weight and relatively thin-gage sheet metal, the peculiar novelformation and cooperative relationship of the different parts providingthe necessary strength to prevent distortion thereof when subjected tothe 'strains and stresses of continuous or repeated use in differ- Y entenvironments. The stool is of light-weight,

and inexpensive in its construction. Iam aware Y that the particularform and shape of the different elements of the stool may be variedwithin equivalent limits without departure from the nature and principleof theinv'ention.

I claim: Y

1. A swivel seat stool, comprising: a pedestal of a plurality ofstandards, each composed of a flat Ymetal strip shaped to provide a pairof aligned limbs,V respectively joined with a limb connecting cross-barportion of the strip of bowed form extending inwardly between thelim-bs, thereby with the limbsproviding diverging feet for the base Y ofthe pedestal, the limbs from their cross-bar connecting end inclined toconverge toward each other with their terminals connected toa cap andthe bowed cross-bar portion of the several standards VVcentrallyintersecting and fixed together, Yan annularly rimmed sheet metal capengaged over and fixed to the terminals fof the'ilimbs providing a headfor the pedestal', th web side of the cap annularly recessed'to providean annular peripheral bearing rib for a seat Vand a sheet metal seathaving a'sheet metal hub iix'ed to and extending Vcentrally from'theunderside thereof engaged upon said pedestal Vcap in swivel connectiontherewith and in bearing contact with `the rib thereof. Y Y

2. A swivel seat stool, comprisingra pedestal of Y a plurality ofstandards each composed of a flatV metal strip shaped approximately toan A-conlower ends Yof the limbs; and the standards relatively angularly`disposed with their cross-'bar portions intersecting and xed together,a cap Number Connecting the upper terminals of the standards 1,584,826and providing a seat supporting head for the 875,494 pedestal and a seathaving a hub extending cen- 144,806

trally from its underside in bearing contact upon 5 574,425

the pedestal cap and in swivel connection there- 1,467,830 with, theface sides of said hub and cap in rela- 1,337,059 tive annular bearingContact by a circumferential 283,131 ridge extending from the face sideof one thereof. 2,193,527 his 10 1,883,322 MIKE BLACK. 874,435 mark2,364,516 Witnesses to mark: 1,092,445 MARCY V. QUAIN. 965,113 JOHN D.RJPPEY. 15 482,553

REFERENCES CITED The foliowing references are of record in the Number leof this patent: 2 978 UNITED STATES PATENTS 2 378,825 Number Name Datelqgg 412,338 I-Iurlburt Oct. 8, 1889 1,039,134 Jenkins Sept. 24, 1912 6Name Date Uhl May 18, 1926 Bedell Dec. 31, 1907 Vollrath Nov. 18, 1873Hood Jan. 5, 1897 Boggs Sept. 11, 1923 Fisher Apr. 13, 1920 McKinnonAug, 14, 1883 Bentz Mar, 12, 1940 Abbott Oct, 18, 1932 Prescott Dec. 24,1907 Buckstaff Dec, 5, 1944 Johnson Apr. 7, 1914 Konstantinides July 19,1910 Fuhrmann Sept. 13, 1892 FOREIGN PATENTS Country Date Great BritainFebr. 19, 1889 Germany Aug, 3, 1923 Great Britain June 2, 1921 GreatBritain Apr. 26, 1899'

